Kidney qi deficiency can be seen in symptoms such as slow reaction, lumbar and knee soreness and weakness (the feeling of soreness and weakness in the lumbar and knee areas), and there are hazards such as developmental delay, sexual dysfunction, infertility, and so on. Symptoms and hazards of Kidney-Qi deficiency on children: Children are often stunted, with five softnesses (softness of the head, softness of the mouth, softness of the hands, softness of the feet and softness of the muscles), five delays (delays in standing, walking, speaking, hair and teeth), slow growth of the teeth or shedding of the teeth, stunted intelligence, slow reaction and poor receptivity, and so on. Symptoms and dangers of kidney qi deficiency on adults: adults may have sexual dysfunction, even infertility, sterility, accompanied by dizziness, tinnitus, hearing loss, increased nocturia, lumbar and knee soreness and weakness, fatigue, weakness of limbs and so on. If the symptoms of Kidney Qi deficiency appear, it is recommended to carry out diagnosis and treatment under the guidance of professional doctors in time.